The original boom-mounted hydraulic hammer combines performance, efficiency and reliability

Allied Hy-Ram® line of hydraulic hammers offers many design advantages over other hammers. Available in eight different models, Hy-Ram breakers can be used on carriers ranging from mini to large, with working weights of 332 to 5,075 pounds and tool diameters of 1.77 to 5.91 inches.

HY-RAM Product Image
Features & Benefits
Product Literature
  • Heavy-duty sealed housing design enclosed at bottom, suspends the internal working body inside a full-box enclosure to protect the hammer, reduce noise and minimize vibration and wear on the carrier.
  • Gas-assist design using low-pressure nitrogen improves efficiency by reducing demand on the carrier’s hydraulic system
  • Large piston
  • Large tool diameter
  • IBP (Idle Blow Protector) on medium and large models prevents idle strokes, avoiding internal stress and extending life span as well as lower owning and operating costs
  • Optional Automatic Greasing System can be mounted on the hammer housing, dispenses lubricant throughout the hammer
  • Built-in grease channel on models HR33, HR44, and HR60
  • Urban-friendly
  • Low operating costs
  • Easy to use and service
  • Excellent power-to-weight ratio
  • Quick-change tool system
  • Constant high productivity